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16
15 14
U34B
DG412-D
CHB NOTCH FREQ DATA
BNF12
BNF[0..12]
BNF[0..12]
E4
6
+15V
9
10 11
U34C
DG412-D
8
7 6
U34D
DG412-D
A
B12(LSB)
15
B11
14
B10
13
B9
12
B8
11
B7
10
B6
9
B5
8
B4
7
B3
6
B2
5
B1(MSB)
4
VREF
17
OUT1
1
OUT2
2
RFEEDBK
18
VD+
16
GND
3
U30
AD7541
C127
.1UF
BNF0
BNF1
BNF2
BNF3
BNF4
BNF5
BNF6
+15V
+15V
A
-15V
A
A
C307
0.1UF
C308
0.1UF
2
3
1
8
4
U32A
5532
A
R137
2.00K
C306
22PF
A
+5VA
1
2 3
13 12
5 4
U34A
DG412-D
6
5
7
U32B
5532
C318
3900PF
C133
.1UF
A
TP10
+15V
-15V
C139
0.1UF
AA
C132
10UF
R143
20.00K
A
BNF7
BNF8
BNF9
BNF10
BNF11
+15V
A
-15V
A
A
A
6
5
7
U33B
5532
C319
3900PF
R138
2.00K
A
C131
10UF
C304
0.1UF
C305
0.1UF
2
3
1
8
4
U33A
5532
A
B12(LSB)
15
B11
14
B10
13
B9
12
B8
11
B7
10
B6
9
B5
8
B4
7
B3
6
B2
5
B1(MSB)
4
VREF
17
OUT1
1
OUT2
2
RFEEDBK
18
VD+
16
GND
3
U29
AD7541
C138
0.1UF
A
A
C303
22PF
BNF0
BNF1
BNF2
BNF3
BNF4
BNF5
BNF6
BNF7
BNF8
BNF9
BNF10
BNF11
+15V
-15V
A
A
A
R145
2.00K
C326
65PF
C129
0.1UF
2
3
1
8
4
U31A
5532
C130
0.1UF
R144
2.00K
C325
497PF
R140
5.36K
R139
2.00K
for
Q=2.7
CHB_HRNOT
CHB_HBNOT
CH.B
C3
C3
6
H12
Logic "1" inserts notch.
CHB_NOTCH
15
16 1
4 3
10
9 8
5 6
11 12
13 14
U35
DG405
4
5
6
U44B
74ALS32
IN
-BP
A
R309
47.5K
C338
10UF
6
5
7
U31B
5532
R142
5.22K
R141
2.00K
NEAR U36
+15V
A-15V
A
A
+5VA
15
16 1
4 3
10
9 8
5 6
11 12
13 14
U36
DG403
C309
0.1UF
TP11
CHB_HIBW
CHB_HIRES
A2
4
A4
4
A
+5VA
C146
3900PF
16
15 14
U42B
DG412-D
1
2 3
13 12
5 4
U42A
DG412-D
C317
.1UF
+15V
+15V
-15V
A
C315
0.1UF
9
10 11
U42C
DG412-D
CHA NOTCH FREQ DATA
ANF12
A
+5VA
ANF[0..12]
ANF[0..12]
E4
6
+15V
-15V
CHA_NOTCH
1
2
3
U44A
74ALS32
+15V
A
R148
2.00K
C327
497PF
R153
2.00K
R154
2.00K
C328
65PF
C143
0.1UF
A
B12(LSB)
15
B11
14
B10
13
B9
12
B8
11
B7
10
B6
9
B5
8
B4
7
B3
6
B2
5
B1(MSB)
4
VREF
17
OUT1
1
OUT2
2
RFEEDBK
18
VD+
16
GND
3
U37
AD7541
C310
22PF
ANF0
ANF1
ANF2
ANF3
ANF4
ANF5
ANF6
ANF7
ANF8
ANF9
ANF10
+15V
A
-15V
A
A
A
6
5
7
U41B
5532
C140
3900PF
2
3
1
8
4
U41A
5532
C312
0.1UF
C311
0.1UF
R147
2.00K
8
7 6
U42D
DG412-D
A
A
B12(LSB)
15
B11
14
B10
13
B9
12
B8
11
B7
10
B6
9
B5
8
B4
7
B3
6
B2
5
B1(MSB)
4
VREF
17
OUT1
1
OUT2
2
RFEEDBK
18
VD+
16
GND
3
U38
AD7541
ANF0
ANF1
ANF2
ANF3
ANF4
ANF5
ANF6
ANF7
ANF8
ANF9
ANF10
ANF11
C313
.1UF
+15V
A
-15V
A
AA
A
2
3
1
8
4
U40A
5532
C314
22PF
C152
0.1UF
C145
10UF
C141
0.1UF
R146
2.00K
6
5
7
U40B
5532
CHA_HIBW
CHA_HIRES
A5
4
A1
4
+15V
A-15V
A
+5VA
15
16 1
4 3
10
9 8
5 6
11 12
13 14
U43
DG403
TP12
IN
-BP
A
R150
2.00K
R151
5.22K
6
5
7
U39B
5532
R152
20.00K
C337
10UF
R308
47.5K
+15V
A
C144
10UF
A
A
C151
0.1UF
ANF11
-15V
A
A
for
Q=2.7
2
3
1
8
4
U39A
5532
R149
5.36K
C142
0.1UF
CHA_HRNOT
CHA_HBNOT
C3
C3
6
CH.A
AM 700
H11
Logic "1" inserts notch.
A
C316
0.1UF
TUNABLE NOTCH FILTERS
PART OF A1A1 ANALOG ACQUISITION BOARD
3